The WORLD (Weight Optimization: Revamping Lifestyles Using the Dietary Guidelines) Study - Developing, Implementing, and Testing an Education Program
Public ClinicalTrials.gov record NCT00847574. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Development, Implementation, & Testing and Education Program to Teach Weight Loss Using the 2005 Dietary Guidelines to Pre-Menopausal Women
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The WORLD study is a single-center, year-long randomized controlled trial in free-living women. Participants were randomly assigned to follow either a lower-fat (LF) diet or a moderate-fat (MF) diet for weight management in a parallel-arm design. The two phases of the study were a weight-loss phase (phase 1) and a weight-maintenance phase (phase 2) (Figure 1). During phase 1, months 1 through 4, participants consumed a hypo-caloric diet consistent with the 2005 Dietary Guidelines in the free-living environment. During phase 2, months 5 through 12, participants shifted into weight maintenance. It was hypothesized that a weight-loss intervention at the extremes of dietary fat recommendations of the 2005 Dietary Guidelines would be equally effective for weight loss while achieving comparable nutrient adequacy. Also, Overall, the lower-fat and moderate-fat diets would both be nutritionally adequate, based on the Healthy Eating Index.
Study identification
- NCT ID
- NCT00847574
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 101 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 21 Years to 50 Years
- Sex
- Female
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Mar 2006 (Type not available)
- Primary completion
- Jun 2008 (Actual)
- Completion
- Dec 2010 (Actual)
- Last update posted
- Aug 18, 2023
2006 – 2010
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Penn State University | University Park | Pennsylvania | 16802 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00847574, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Aug 18, 2023 · Synced Oct 18, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT00847574 live on ClinicalTrials.gov.